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Intelligent measurement construction method for positioning arch rib of long railway tunnel

A construction method and intelligent measurement technology, applied in the erection/assembly of bridges, bridges, buildings, etc., can solve the problems of high safety risk for surveyors, large amount of calculation of three-dimensional space coordinates, low accuracy and reliability, etc., to eliminate high-altitude safety risks. , The effect of shortening the assembly period and high conversion accuracy

Active Publication Date: 2014-05-28
THE FOURTH ENG CO LTD OF CTCE GRP
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AI Technical Summary

Problems solved by technology

[0002] There are strict technical requirements for the positioning of long continuous beam arch ribs. When the elevations of the two arch feet are not equal, manual conversion of three-dimensional space coordinates requires a large amount of calculation and low accuracy and reliability.
The traditional total station combined with the prism measurement method is difficult to meet the construction period requirements of the arch rib assembly. The safety risk of the surveyors who are positioned at high altitude is relatively high, and the positioning and assembly costs are relatively high.

Method used

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  • Intelligent measurement construction method for positioning arch rib of long railway tunnel
  • Intelligent measurement construction method for positioning arch rib of long railway tunnel
  • Intelligent measurement construction method for positioning arch rib of long railway tunnel

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Embodiment Construction

[0025] Referring to the accompanying drawings, the intelligent measurement construction method for positioning long arch ribs of railways includes the following steps:

[0026] (1) Determine the coordinate transformation parameters

[0027] The engineering coordinates of the arch rib are required for on-site positioning, so the conversion parameters between relatively independent coordinates and engineering coordinates must be determined;

[0028] (2) Determine the coordinate transformation formula

[0029] Determine the coordinate conversion formula according to the coordinate conversion parameters;

[0030] (3) Write software source code and instrument interface source code

[0031] a. The software can realize the conversion between relatively independent coordinates and engineering coordinates;

[0032] b. The software can realize the connection with the total station, and can check the bubble flatness of the total station;

[0033] c. The software can read the engineer...

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Abstract

The invention provides an intelligent measurement construction method for positioning arch ribs of a long railway tunnel. During arch rib positioning, the intelligent measurement construction method includes: (1) determining a coordinate conversion parameter, (2) determining a coordinate conversion formula, (3) editing a software source code and an instrument interface source code, (4) testing software and applying if the software is qualified, (5) pasting light-reflecting pieces at four corners designed for the arch rib to serve as positioning measurement points for the arch rib, (6) performing assembling measurement for the first section of the arch rib, and (7) performing intelligent positioning measurement for the next section of the arch rib till all positioning assembling of the arch ribs are finished. The intelligent measurement construction method is applied to 180 meters of continuous beam arch rib assembling in the Nanfei river bridge of the HeFu railway, safety risk during constructional measurement is reduced, arch rib positioning efficiency is improved greatly, and cost is saved.

Description

technical field [0001] The invention belongs to a construction measuring method, in particular to a construction method for positioning and measuring long arch ribs of a railway. Background technique [0002] The positioning of long continuous beam arch ribs has strict technical requirements. When the elevations of the two arch feet are not equal, manual conversion of three-dimensional space coordinates requires a large amount of calculation and low accuracy and reliability. The traditional total station combined with the prism measurement method is difficult to meet the construction period requirements of the arch rib assembly. The safety risk of the surveyors who are positioned at high altitude is relatively high, and the positioning and assembly costs are relatively high. Contents of the invention [0003] The purpose of the present invention is to provide a construction method for positioning and measuring railway long arch ribs. The software connected with the total s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
Inventor 朱善美商科军匡建国马海贤黄景新沙伟杨曦贾晓炯安刚建王克伍
Owner THE FOURTH ENG CO LTD OF CTCE GRP
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